Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:L/U:Red
Network-reachable with low privileges; scope change captures downstream PROFINET device integrity impact; no confidentiality loss; low availability degradation on subsequent systems.
Primary rating from Vendor (Softing).
CVSS VectorVendor: Softing
Lifecycle Timeline
3DescriptionCVE.org
Missing release of memory after effective lifetime vulnerability in Softing smartLink allows resource leak exposure.
This issue affects smartLink HW-PN: from 1.04 before 1.10.
AnalysisAI
Uncontrolled memory growth in Softing smartLink HW-PN versions 1.04 through 1.09 allows a low-privileged network-adjacent attacker to trigger a resource leak that propagates high-integrity and low-availability impact to downstream subsequent systems - likely PROFINET-connected industrial devices bridged through the gateway. The vulnerability is classified CWE-401 (Missing Release of Memory after Effective Lifetime), indicating that allocated memory is not freed upon session or object expiration, accumulating over time. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a low-privilege authenticated account on the smartLink HW-PN network interface - the CVSS vector PR:L confirms authentication is necessary. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 6.3 reflects a moderate-severity finding whose real-world impact is concentrated in operational technology environments rather than enterprise IT. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade smartLink HW-PN firmware to version 1.10 or later, as the vendor's advisory (https://industrial.softing.com/fileadmin/psirt/downloads/2026/CVE-2026-13148.html) defines 1.10 as the remediated release boundary. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-401 – Memory Leak
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-70986
GHSA-5mwp-xgjv-pjph